I bought these. They are T2M T2M-7004-A 1/24 20inch OZ wheel set. The ones with the tires on I am using for my build. I do have another set of rims that I would trade. They are the ones without tires. They will come with rims, spokes, axle, and center caps and decals. PM me if you are interested. You can switch where you want them. They can be deep on whatever side as shown. Here is a link to them also> http://www.ebay.com/itm/T2M-T2M-7004-A-1-24-20inch-OZ-wheel-set-MICHELANGELO-II-PL-deluxe-version-/321747352448?hash=item4ae9a2fb80
I am going to rebuild the silver one. I just pulled it out of the stripper pond. I am using the kit I showed as my parts because it all fits perfect. I also have the pontiac engine in that kit. I do have a flat hood if you would like to swap something. It doesn't have the shaker or the formula vents. It even has the detail under it. Let me know if your interested.
All of the parts from this new kit will fit that '73 you have, plus it has great decals. I have a '73 and was using this same kit for parts. It only has the shaker hood and everything will fit your '73. This link is just to show the kit look for it cheaper. http://www.ebay.com/itm/MPC-1979-Pontiac-Firebird-Trans-Am-1-25-model-car-kit-new-820-/191891345732?hash=item2cad9d9144:g:gp0AAOSwl8NVU-il. Wish you luck.
Thanks all. Yes I know they will be expensive and am prepared to pay my toll. I do have a '70, '73, '74, and a '76. I just recently bought a '71 but was hoping to find this '72 or '73. I am hoping to build all these years. If you guys see one somewhere I would greatly appreciate if you could drop me a line. Heck, if I buy it I might even send someone a big finders fee. Thanks again everyone for taking time to comment on this. I do appreciate it. Thanks again.